<p>hilarious: for binaryen's wasm-opt, optimizations are cumulative; -O3 -O3 runs the -O3 optimizations twice. for the wasm in google sheets, they use -O3 -O3 -O3 -O3 -O3 -O3 😂 <a href="https://github.com/WebAssembly/binaryen/wiki/GC-Optimization-Guidebook" target="_blank" rel="nofollow noopener" translate="no"><span class="invisible">https://</span><span class="ellipsis">github.com/WebAssembly/binarye</span><span class="invisible">n/wiki/GC-Optimization-Guidebook</span></a></p>